Shell Oil Comapny

Enventure Global Technology Inc.

Shell Internationale Research Maatschappij, B.v.

Darrell Scott Costa

Djurre Hans Zijsling

Kevin Karl Waddell

Edwin Arnold Zwald, Jr

Gregory Marshall Noel

Donald Bruce Campo

Mark Holland

William Robert Portas

Charles Butterfield

Akindele Olufowoshe

The invention relates to a method for drilling and casing a wellbore using a drilling rig having a predetermined load capacity, using a casing scheme comprising two or more casing strings, and at least one combined casing string, which includes a first one of the casing strings fitting within a second casing string. The weight of the at least one combined casing string may exceed the load capacity of the drilling rig, and the weight of each of the parts of the at least one combined casing string is less than the load capacity.

Combined casing system and method

A method of drilling and lining a wellbore includes operably coupling a support member to a drilling device, an expansion cone configured to expand a tubular member, an actuator configured to pull the expansion cone through the tubular member, a releasable locking device configured to limit displacement of the tubular member relative to the actuator during actuation. The drilling device is disposed below the expansion cone and the expansion cone is disposed at a lower end of the tubular member. The method further includes locking the locking device. After locking the locking device, a wellbore is drilled to have a diameter greater than an outside diameter of the tubular member. After the drilling, the actuator is actuated to pull the expansion cone towards the locking device to expand at least a portion of the tubular member into contact with the drilled wellbore. The method further includes releasing the locking device and removing the drilling device through the expanded tubular member.

Apparatus and methods for drilling and lining a wellbore

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Katy, TX, United States of America

Darrell Scott Costa